New weapons

Is it possible to have a new weapon crafted "post searing" Ascalon? Or do we have to rely on trade and drops?

There are a couple crafters post-searing that will craft you weapons, though those weapons are generally worse than ones that you will find by that point in the game. I know the crafter in LA had a couple weapons he could craft, and I believe you could craft them in Denravi as well.

You can also pick up weapons from some of the collectors in the EA's that are about on-par with an average weapon drop in the area of the collector, often slightly better than most drops you'll find, but with steeper requirements.